And just in case, for Debian and related distributions, the release information is stored into 
/etc/debian_version

[download]
And slackare uses 
/etc/slackware-version

[download]

In reply to Re^2: (OT) command for finding out which distribution of Linux is being used by wazoox
in thread (OT) command for finding out which distribution of Linux is being used by heidi

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